(function () {
	'use strict';

	function createCommonjsModule(fn, module) {
		return module = { exports: {} }, fn(module, module.exports), module.exports;
	}

	var awesomplete = createCommonjsModule(function (module) {
	/**
	 * Simple, lightweight, usable local autocomplete library for modern browsers
	 * Because there weren’t enough autocomplete scripts in the world? Because I’m completely insane and have NIH syndrome? Probably both. :P
	 * @author Lea Verou http://leaverou.github.io/awesomplete
	 * MIT license
	 */

	(function () {

	var _ = function (input, o) {
		var me = this;

	    // Keep track of number of instances for unique IDs
	    _.count = (_.count || 0) + 1;
	    this.count = _.count;

		// Setup

		this.isOpened = false;

		this.input = $(input);
		this.input.setAttribute("autocomplete", "off");
		this.input.setAttribute("aria-expanded", "false");
		this.input.setAttribute("aria-owns", "awesomplete_list_" + this.count);
		this.input.setAttribute("role", "combobox");

		// store constructor options in case we need to distinguish
		// between default and customized behavior later on
		this.options = o = o || {};

		configure(this, {
			minChars: 2,
			maxItems: 10,
			autoFirst: false,
			data: _.DATA,
			filter: _.FILTER_CONTAINS,
			sort: o.sort === false ? false : _.SORT_BYLENGTH,
			container: _.CONTAINER,
			item: _.ITEM,
			replace: _.REPLACE,
			tabSelect: false
		}, o);

		this.index = -1;

		// Create necessary elements

		this.container = this.container(input);

		this.ul = $.create("ul", {
			hidden: "hidden",
	        role: "listbox",
	        id: "awesomplete_list_" + this.count,
			inside: this.container
		});

		this.status = $.create("span", {
			className: "visually-hidden",
			role: "status",
			"aria-live": "assertive",
	        "aria-atomic": true,
	        inside: this.container,
	        textContent: this.minChars != 0 ? ("Type " + this.minChars + " or more characters for results.") : "Begin typing for results."
		});

		// Bind events

		this._events = {
			input: {
				"input": this.evaluate.bind(this),
				"blur": this.close.bind(this, { reason: "blur" }),
				"keydown": function(evt) {
					var c = evt.keyCode;

					// If the dropdown `ul` is in view, then act on keydown for the following keys:
					// Enter / Esc / Up / Down
					if(me.opened) {
						if (c === 13 && me.selected) { // Enter
							evt.preventDefault();
							me.select(undefined, undefined, evt);
						}
						else if (c === 9 && me.selected && me.tabSelect) {
							me.select(undefined, undefined, evt);
						}
						else if (c === 27) { // Esc
							me.close({ reason: "esc" });
						}
						else if (c === 38 || c === 40) { // Down/Up arrow
							evt.preventDefault();
							me[c === 38? "previous" : "next"]();
						}
					}
				}
			},
			form: {
				"submit": this.close.bind(this, { reason: "submit" })
			},
			ul: {
				// Prevent the default mousedowm, which ensures the input is not blurred.
				// The actual selection will happen on click. This also ensures dragging the
				// cursor away from the list item will cancel the selection
				"mousedown": function(evt) {
					evt.preventDefault();
				},
				// The click event is fired even if the corresponding mousedown event has called preventDefault
				"click": function(evt) {
					var li = evt.target;

					if (li !== this) {

						while (li && !/li/i.test(li.nodeName)) {
							li = li.parentNode;
						}

						if (li && evt.button === 0) {  // Only select on left click
							evt.preventDefault();
							me.select(li, evt.target, evt);
						}
					}
				}
			}
		};

		$.bind(this.input, this._events.input);
		$.bind(this.input.form, this._events.form);
		$.bind(this.ul, this._events.ul);

		if (this.input.hasAttribute("list")) {
			this.list = "#" + this.input.getAttribute("list");
			this.input.removeAttribute("list");
		}
		else {
			this.list = this.input.getAttribute("data-list") || o.list || [];
		}

		_.all.push(this);
	};

	_.prototype = {
		set list(list) {
			if (Array.isArray(list)) {
				this._list = list;
			}
			else if (typeof list === "string" && list.indexOf(",") > -1) {
					this._list = list.split(/\s*,\s*/);
			}
			else { // Element or CSS selector
				list = $(list);

				if (list && list.children) {
					var items = [];
					slice.apply(list.children).forEach(function (el) {
						if (!el.disabled) {
							var text = el.textContent.trim();
							var value = el.value || text;
							var label = el.label || text;
							if (value !== "") {
								items.push({ label: label, value: value });
							}
						}
					});
					this._list = items;
				}
			}

			if (document.activeElement === this.input) {
				this.evaluate();
			}
		},

		get selected() {
			return this.index > -1;
		},

		get opened() {
			return this.isOpened;
		},

		close: function (o) {
			if (!this.opened) {
				return;
			}

			this.input.setAttribute("aria-expanded", "false");
			this.ul.setAttribute("hidden", "");
			this.isOpened = false;
			this.index = -1;

			this.status.setAttribute("hidden", "");

			$.fire(this.input, "awesomplete-close", o || {});
		},

		open: function () {
			this.input.setAttribute("aria-expanded", "true");
			this.ul.removeAttribute("hidden");
			this.isOpened = true;

			this.status.removeAttribute("hidden");

			if (this.autoFirst && this.index === -1) {
				this.goto(0);
			}

			$.fire(this.input, "awesomplete-open");
		},

		destroy: function() {
			//remove events from the input and its form
			$.unbind(this.input, this._events.input);
			$.unbind(this.input.form, this._events.form);

			// cleanup container if it was created by Awesomplete but leave it alone otherwise
			if (!this.options.container) {
				//move the input out of the awesomplete container and remove the container and its children
				var parentNode = this.container.parentNode;

				parentNode.insertBefore(this.input, this.container);
				parentNode.removeChild(this.container);
			}

			//remove autocomplete and aria-autocomplete attributes
			this.input.removeAttribute("autocomplete");
			this.input.removeAttribute("aria-autocomplete");

			//remove this awesomeplete instance from the global array of instances
			var indexOfAwesomplete = _.all.indexOf(this);

			if (indexOfAwesomplete !== -1) {
				_.all.splice(indexOfAwesomplete, 1);
			}
		},

		next: function () {
			var count = this.ul.children.length;
			this.goto(this.index < count - 1 ? this.index + 1 : (count ? 0 : -1) );
		},

		previous: function () {
			var count = this.ul.children.length;
			var pos = this.index - 1;

			this.goto(this.selected && pos !== -1 ? pos : count - 1);
		},

		// Should not be used, highlights specific item without any checks!
		goto: function (i) {
			var lis = this.ul.children;

			if (this.selected) {
				lis[this.index].setAttribute("aria-selected", "false");
			}

			this.index = i;

			if (i > -1 && lis.length > 0) {
				lis[i].setAttribute("aria-selected", "true");

				this.status.textContent = lis[i].textContent + ", list item " + (i + 1) + " of " + lis.length;

	            this.input.setAttribute("aria-activedescendant", this.ul.id + "_item_" + this.index);

				// scroll to highlighted element in case parent's height is fixed
				this.ul.scrollTop = lis[i].offsetTop - this.ul.clientHeight + lis[i].clientHeight;

				$.fire(this.input, "awesomplete-highlight", {
					text: this.suggestions[this.index]
				});
			}
		},

		select: function (selected, origin, originalEvent) {
			if (selected) {
				this.index = $.siblingIndex(selected);
			} else {
				selected = this.ul.children[this.index];
			}

			if (selected) {
				var suggestion = this.suggestions[this.index];

				var allowed = $.fire(this.input, "awesomplete-select", {
					text: suggestion,
					origin: origin || selected,
					originalEvent: originalEvent
				});

				if (allowed) {
					this.replace(suggestion);
					this.close({ reason: "select" });
					$.fire(this.input, "awesomplete-selectcomplete", {
						text: suggestion,
						originalEvent: originalEvent
					});
				}
			}
		},

		evaluate: function() {
			var me = this;
			var value = this.input.value;

			if (value.length >= this.minChars && this._list && this._list.length > 0) {
				this.index = -1;
				// Populate list with options that match
				this.ul.innerHTML = "";

				this.suggestions = this._list
					.map(function(item) {
						return new Suggestion(me.data(item, value));
					})
					.filter(function(item) {
						return me.filter(item, value);
					});

				if (this.sort !== false) {
					this.suggestions = this.suggestions.sort(this.sort);
				}

				this.suggestions = this.suggestions.slice(0, this.maxItems);

				this.suggestions.forEach(function(text, index) {
						me.ul.appendChild(me.item(text, value, index));
					});

				if (this.ul.children.length === 0) {

	                this.status.textContent = "No results found";

					this.close({ reason: "nomatches" });

				} else {
					this.open();

	                this.status.textContent = this.ul.children.length + " results found";
				}
			}
			else {
				this.close({ reason: "nomatches" });

	                this.status.textContent = "No results found";
			}
		}
	};

	// Static methods/properties

	_.all = [];

	_.FILTER_CONTAINS = function (text, input) {
		return RegExp($.regExpEscape(input.trim()), "i").test(text);
	};

	_.FILTER_STARTSWITH = function (text, input) {
		return RegExp("^" + $.regExpEscape(input.trim()), "i").test(text);
	};

	_.SORT_BYLENGTH = function (a, b) {
		if (a.length !== b.length) {
			return a.length - b.length;
		}

		return a < b? -1 : 1;
	};

	_.CONTAINER = function (input) {
		return $.create("div", {
			className: "awesomplete",
			around: input
		});
	};

	_.ITEM = function (text, input, item_id) {
		var html = input.trim() === "" ? text : text.replace(RegExp($.regExpEscape(input.trim()), "gi"), "<mark>$&</mark>");
		return $.create("li", {
			innerHTML: html,
			"role": "option",
			"aria-selected": "false",
			"id": "awesomplete_list_" + this.count + "_item_" + item_id
		});
	};

	_.REPLACE = function (text) {
		this.input.value = text.value;
	};

	_.DATA = function (item/*, input*/) { return item; };

	// Private functions

	function Suggestion(data) {
		var o = Array.isArray(data)
		  ? { label: data[0], value: data[1] }
		  : typeof data === "object" && "label" in data && "value" in data ? data : { label: data, value: data };

		this.label = o.label || o.value;
		this.value = o.value;
	}
	Object.defineProperty(Suggestion.prototype = Object.create(String.prototype), "length", {
		get: function() { return this.label.length; }
	});
	Suggestion.prototype.toString = Suggestion.prototype.valueOf = function () {
		return "" + this.label;
	};

	function configure(instance, properties, o) {
		for (var i in properties) {
			var initial = properties[i],
			    attrValue = instance.input.getAttribute("data-" + i.toLowerCase());

			if (typeof initial === "number") {
				instance[i] = parseInt(attrValue);
			}
			else if (initial === false) { // Boolean options must be false by default anyway
				instance[i] = attrValue !== null;
			}
			else if (initial instanceof Function) {
				instance[i] = null;
			}
			else {
				instance[i] = attrValue;
			}

			if (!instance[i] && instance[i] !== 0) {
				instance[i] = (i in o)? o[i] : initial;
			}
		}
	}

	// Helpers

	var slice = Array.prototype.slice;

	function $(expr, con) {
		return typeof expr === "string"? (con || document).querySelector(expr) : expr || null;
	}

	function $$(expr, con) {
		return slice.call((con || document).querySelectorAll(expr));
	}

	$.create = function(tag, o) {
		var element = document.createElement(tag);

		for (var i in o) {
			var val = o[i];

			if (i === "inside") {
				$(val).appendChild(element);
			}
			else if (i === "around") {
				var ref = $(val);
				ref.parentNode.insertBefore(element, ref);
				element.appendChild(ref);

				if (ref.getAttribute("autofocus") != null) {
					ref.focus();
				}
			}
			else if (i in element) {
				element[i] = val;
			}
			else {
				element.setAttribute(i, val);
			}
		}

		return element;
	};

	$.bind = function(element, o) {
		if (element) {
			for (var event in o) {
				var callback = o[event];

				event.split(/\s+/).forEach(function (event) {
					element.addEventListener(event, callback);
				});
			}
		}
	};

	$.unbind = function(element, o) {
		if (element) {
			for (var event in o) {
				var callback = o[event];

				event.split(/\s+/).forEach(function(event) {
					element.removeEventListener(event, callback);
				});
			}
		}
	};

	$.fire = function(target, type, properties) {
		var evt = document.createEvent("HTMLEvents");

		evt.initEvent(type, true, true );

		for (var j in properties) {
			evt[j] = properties[j];
		}

		return target.dispatchEvent(evt);
	};

	$.regExpEscape = function (s) {
		return s.replace(/[-\\^$*+?.()|[\]{}]/g, "\\$&");
	};

	$.siblingIndex = function (el) {
		/* eslint-disable no-cond-assign */
		for (var i = 0; el = el.previousElementSibling; i++);
		return i;
	};

	// Initialization

	function init() {
		$$("input.awesomplete").forEach(function (input) {
			new _(input);
		});
	}

	// Make sure to export Awesomplete on self when in a browser
	if (typeof self !== "undefined") {
		self.Awesomplete = _;
	}

	// Are we in a browser? Check for Document constructor
	if (typeof Document !== "undefined") {
		// DOM already loaded?
		if (document.readyState !== "loading") {
			init();
		}
		else {
			// Wait for it
			document.addEventListener("DOMContentLoaded", init);
		}
	}

	_.$ = $;
	_.$$ = $$;

	// Expose Awesomplete as a CJS module
	if ( module.exports) {
		module.exports = _;
	}

	return _;

	}());
	});

}());
